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# DAL
**Data Access Layer**
DAL is a proxy layer for SQL databases with a MongoDB inspired query interface.
It can be used as a Go or NodeJS package (requires compiler) to create your own proxy and apply custom middlewares.
It can be used as a Go or NodeJS package (requires compiler).
It is modular and allows to create your own proxy and apply custom middlewares.
_Notes:_
- This project is still in early alpha. You need to build it yourself and use at your own risk.
- This project is still in **early alpha**. You need to build it yourself and use at your own risk.
- At the time only SQLite is implemented, however, other drivers might work.
_Use cases:_
- For IOT networks when MySQL/PG are too heavy.
- If you need a layer between your application and the database (i.e. for caching).
- If you want a MongoDB-like query interface for your SQL.
- If you want a MongoDB-like query interface for your SQL db.
- When you need a SQLite proxy (useful to share datasets with services)
## Usage
@ -102,16 +105,26 @@ const db = new DAL({
url: "http://localhost:8111",
});
// SELECT * FROM test t WHERE name GLOB '*son' AND age >= 18
const rows = db
.In("test t")
.Find({
name: { $glob: "*son" },
age: { $gte: 18 },
}) // SELECT * FROM test t WHERE name GLOB '*son' AND age >= 18
})
.As(UserDTO) // Map every row to DTO
.Rows(); // Get iterator
.Rows();
for await (const row of rows) {
console.log(row); // Jason, Jackson
}
```
## Internals
The client uses a light builder and messagepack over http. It is relatively easy to implement a client in any language see [the docs](./doc/)
## License
While in alpha stage the project is free for research purposes.
Later it will be released under MIT-like license with AI/dataset exclusion terms.